OCEANAIRE OWC series Engineering, Installation And Service Manual page 12

ACCESSORIES
EVAPORATOR RETURN AIR PLENUM, DEP
Evaporator return air plenums are available for installations where it is required to duct air
to the inlet of the evaporator. The evaporator return air plenums allow the user to connect
round duct (flexible or rigid) to the return air intake to reduce air noise and increase the
number of options for solving difficult cooling problems. The plenum attaches to the front
of the unit, replacing the return air grill. Refer to the table below for configuration and
application information
DEP-10 for OWC12 transitions the return air opening to a 10-inch round duct.
DEP-12 for OWC18 and OWC24 transiti ons the return opening to a 12 -inch round
duct.
DEP-16 for OWC36 and OWC60 transiti ons the return opening to a 16- inch round
duct.
NOTE—When a DEP is installed, it is recommended to set the evaporator blower
speed to high, to avoid evaporator freeze-up.
DEP—EVAPORATOR
RETURN AIR PLENUM
Plenum Kit
OWC12 OWC18 OWC24 OWC36 OWC60
Duct/Flange
DEP-10
10 inch
DEP-12
12 inch
DEP-16
16 inch
Maximum
Equivalent Feet
Est. External
Static (.20)
Pressure
FILTER(S)
ü
ü ü
25 50 50
(.25) (.25)
10
(1) 10"X20"X1"
(1) 15"X25"X1"
(1) 12"X30"X1"
ü ü
(1)15"X30"X1"
50 100
(.25) (.50)
FILTERS